rs201658767
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_006662.3(SRCAP):c.3671G>A(p.Arg1224His) variant causes a missense change. The variant allele was found at a frequency of 0.0000465 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1224C) has been classified as Uncertain significance.
Frequency
Consequence
NM_006662.3 missense
Scores
Clinical Significance
Conservation
Publications
- developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalitiesInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
- Floating-Harbor syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SRCAP | ENST00000262518.9 | c.3671G>A | p.Arg1224His | missense_variant | Exon 22 of 34 | 2 | NM_006662.3 | ENSP00000262518.4 | ||
| ENSG00000282034 | ENST00000380361.7 | n.3326G>A | non_coding_transcript_exon_variant | Exon 18 of 31 | 2 | ENSP00000369719.3 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152176Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251396 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000486 AC: 71AN: 1461816Hom.: 0 Cov.: 31 AF XY: 0.0000371 AC XY: 27AN XY: 727202 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152294Hom.: 0 Cov.: 32 AF XY: 0.0000537 AC XY: 4AN XY: 74454 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
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This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1224 of the SRCAP protein (p.Arg1224His). This variant is present in population databases (rs201658767, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with SRCAP-related conditions. ClinVar contains an entry for this variant (Variation ID: 445699). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SRCAP protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Inborn genetic diseases Uncertain:1
The c.3671G>A (p.R1224H) alteration is located in exon 22 (coding exon 20) of the SRCAP gene. This alteration results from a G to A substitution at nucleotide position 3671, causing the arginine (R) at amino acid position 1224 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at